What are the characteristics of the quadratic function f(x) = x^2? Identify the vertex, axis of symmetry, and whether it opens upward or downward. Does it have a maximum or minimum value? Does the graph intersect the x-axis or y-axis?
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Question: What is the average rate of change of the function f(x) = 3x^2 + 2x - 1 over the interval [1, 5]?
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What is the value of sin(45º) + cos(45º) - tan(45º)?